Quantitative collection device for settled dust

A settled dust quantitative collecting device comprises a triangular support and an objective table fixedly arranged on the triangular support, a containing hole is formed in the objective table, an air suction pipe is inserted into the containing hole, the top of the air suction pipe is fixedly connected with an air suction cover, and the bottom of the air suction pipe is in threaded connection with a transparent dust collecting pipe; wherein a protective net is arranged at the upper end of the air suction cover, scale marks are arranged on the dust collection pipe, a branch pipe is arranged on the side wall of the dust collection pipe and fixedly connected with one end of a filter, and the other end of the filter is communicated with an air pump through a pipeline. 一种沉降尘定量收集装置，包括三角支架以及固定设置在三角支架上的载物台，所述载物台上开设有容置孔，该容置孔内插设有吸风管，所述吸风管顶部固定连接有吸风罩，底部螺纹连接有透明的集尘管；其中所述吸风罩上端设置有防护网，所述集尘管上设置有刻度线，并且集尘管侧壁上具有分支管，该分支管与过滤器一端固定连接，过滤器另一端通过管路与空气泵连通。